1220021013047 has 2 divisors, whose sum is σ = 1220021013048. Its totient is φ = 1220021013046.

The previous prime is 1220021013011. The next prime is 1220021013083. The reversal of 1220021013047 is 7403101200221.

It is a balanced prime because it is at equal distance from previous prime (1220021013011) and next prime (1220021013083).

It is a cyclic number.

It is not a de Polignac number, because 1220021013047 - 2⁶ = 1220021012983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220021033047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610010506523 + 610010506524.

It is an arithmetic number, because the mean of its divisors is an integer number (610010506524).

Almost surely, 2^{1220021013047} is an apocalyptic number.

1220021013047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220021013047 is an equidigital number, since it uses as much as digits as its factorization.

1220021013047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 1220021013047 its reverse (7403101200221), we get a palindrome (8623122213268).

The spelling of 1220021013047 in words is "one trillion, two hundred twenty billion, twenty-one million, thirteen thousand, forty-seven".